Refrigerator



F. J. DAHLKE.

REFRIGERATOR.

APPLICATION man JUNE 4,1919.

1 ,849,369, Patented Aug. 10, 1920.

2 SHEETS-SHEET l.

F. l. DAHLKE.

REFRIGEEATOR.

APPLICATION man 11mm, 1919.

Pillted Allg- 10, 1920.

2 swims-SHEET 2.

f. ///////r///////////////// f/ U o w o Vf//////// 7 UNITED STATES VPATENT OFFICE.

IIEDRIUK J. DABLKE, OF DAMLBCUB, OHIO.

amarenaaron. 1,349,369. sp'enmuon einstimmen. Patented Aug, 10, .1920, Application nled June 4, 181D. Serial No. 801,881.

To allwlwm it may concern.' is disclosed in the accompanying drawings,

Be it known that I, FiiEDnIck J. DAnLxn,

a citizen of the United States, residing at Damascus, in the county ofA Columbiana and State of Ohio, have invented a new and use ful Refrigerator, of which the following is a specification.

This invention relates to refrigerators, and has more especial reference to that type of refrigerators which do not require ice and fwhieh are Aarranged to be cooled by being A ered into `'and raised from a Boi ' illustrated in pended claims, it being understoodthatj in the form, proportions, size and minor detalsof'constrnction may.' be made within the scope of the appended irit or sacrificing Aany of the, advantages o the lowered into a shaft and to vbe raised from the haft when access to its contents is desire The objects of the present invention are to provide a refrigeratonwhichmay be 'lowshaft' located beneath the door, to .provide a water jacket around the shaftfoi: cooling the interior of 'rovide means for .circulating the-Bhftw j Water throng; the'jacket, to'vmaintain the .temperture of the shaft lat the desired point, to Aprovide means for shutting' of each compartment inthe refrigerator from the adoining com vent t e odors o the foods passing from one compartment to another, to maintain the interior of the 'shaft and clean; and to generally iin rove an .simplify the construction of t is type of refrigerator. l

With these objects in Iview the invention consiste inthe novel construction and arrangement of plartsghereinafter described,

out inj'theapand particularly poin various changes claims, without'departiiig from the th 0 invention.`

lThe invention vthus set forth in general terms 'is illustrated -n the accompanying drawings forming part hereof, in iwhich-- re' 1y is a vertical sectional view through a refrigeratorv 1embodying the invenden; l

' Fig. 2, a vertical transverse sectional view through the device;

F` 8,1. horizontal sectional view through s `rig. 4 bedmar accio-mi view ihjmgn ,A recensement of, de investie the `showing a pairof the. rollersmounted thereon,-

'part'ments 6 thus formed.v

vartments in order to pree' accom anying drawings,

movement upon the forming a part of this specificationin which similar numerals of re erence indicate cor- `responding parts throughout the several views.

Referring more es cially to the construc- 'tion illustrated in t e accompanying drawings, the door is indicated by the numeral 1, the shaft 2 being shown extending down from the floorto a suitable depth and rovided with a water jacket 3, radial wal 4 being located at intervals between the shaft and the water jacket for the purpose of bracing the structure, these walls being provided with apertures 5 to allow the VWater to circulate through all of the-comone compartment 'l' does not communicate with the adjoining compartments, butcommnnicates 4with the lower extremity of the shaft by means of the aperture 8, a similar aperture 9 being It should be noted that formed in the outer 4wall of this ,compart- Vment adjacent they floor. A screen l0 is placed overthe aperture `9 for thepurpose of preventing dirt or insects from entering the shaft. Air is thus admitted into the interior of the shaft from the outside and as the refrigerator is lowered vinto the shaft the air displaced will be forced out through the compartment 7. i

The shaft is located beneath the aperture 11 formed in the door, said aperture being' closed by means of a hinged trap 'door 12. Th'e'sha'ft "is built of anysuitable material preferably of concrete tiles." For the pur,- pose ,of'adintting water tothe jacket, a pipe 18 communicates with one of the compartments 6, said pipe leading to a suitable source of water supply either a pump, cistern or the like. An outlet pipe 14 communicates with one of the compartments 6preferably upon the opposite side of the water jacket. It will be seen that the water within the water jacket may be changed 'as often as desired, fresh water being admitted through the pi '13 and allowed to circulate around t e jacket, the stale wateroverilowing throu h which pipe leads to a snita e drain. temperature ofil the interior of the shaft may thus be maintained at the desired point while the interior of the shaft remains dry.

The refrigerator is mounted for vertical track 15, which track il preferably of the cron sectional form best shown in Fig. 4 and is mounted within the shaft and extends up through the opening in the floor for a sullicient distance to allow the refrigerator to be moved out of the shaft and above the floor level.

The refrigerator proper is indicated by the numeral 1G and is preferably formed of sheet metal being provided with a plurality of shelves 17 which extend out Hush with the front of the refrigerator, a door 18 being hinged at 19 to one side edge of the body of the refrigerator, said door being provided with horizontally disposed grooves 20, which receive the forward edges of the shelves, thus entirely shutting olf each compartment from the remaining compartments 1n the refrigerator and preventing odors of food in one compartment from passing to the other compartments.

The refrigerator is mounted upon a bracket 2l, said bracket heilig provided with a pair of rollers 22 havingr annular lianges which enga-ge opposite sides of the track 15. thus preventingr lateral movement of the refrigerator' with reference to the track. f similar pair of pulleys 2Q. is mounted at the upper end of the refrigerator.

or the purpose of opening the trap door 12 as the refrigerator is raised, the upper portion of the refrigerator is tapered as best shown in Fig. 1, a roller 24 being provided at its upper extremity to engage the under surface of the door. A similar roller 25 is provided upon the side of the refrigerator' adjacent the hinge side of the door to assist in raising the door. this second roller engaging the door after it has been engaged by the first roller.

For the purpose of raising and lowering the refrigerator within the shaft a drum 26 is mounted within the wall 27, a cable 28 heilig wound around said drum and connected to the bracket 21 which carries the refrigerator, said cable being passed over suitable pulleys 29. The other extremity of the cable extends down into the compartment 7 and is provided with a counterweight 30 to balance the weight of the refrigrator.

It will be seen that a refrigerator is thus provided which is not unsightly, as when the refrigerator is lowered into the shaft and the trap door closed the only portions of the device appearing within the room are the upper portion of the track 15 which is located against the wall, and the crank 31 by means of which the drum is operated. The shaft wit-hin which the refrigerator is lowered is dry=and at the same time is maintained at the proper temperature by means of the water circulated through the water jacketand the refrigerator proper is so constructed that each compartment. is shut off from the remainder of the refrigerator, thus making it possible to keep various kinds of food within the refrigerator without danger of their becoming contaminated with the odor of other foods kept therein.

For the purpose 0f keeping the door l2 positively closed, at all times to prevent opening of the same by any small children playing upon the fioor and prevent their falling into the shaft, a spring lock 32 of any usual and well known character is provided upon the door, the bolt 33 of said lock extending backwardly through the casing of the lock by being pivotally attached to the link 34, which link is pivoted to the lever ,65, which lever is pivotally mounted to the bracket 3G carried by the door, the tail 37 of the lever extending rearwardly and being arran ed to be engaged by the roller 24 as the re rigerator is raised unlocking the door and allowing it to be opened by the upward movement of the refrigerator. It will be seen that as the door closes the spring lock will automatically operate to lock the door in the closed position. For the purpose of opening, the door from above, an aperture 38 is provided in the door through which a wire or other suitable device may be placed to engage the lever 35.

Although the drawings and above specification disclose the best mode in which I have contemplated embodying my` invention, I desire to be not limited to the details of such disclosure. for in the further practical application of my invention, many changes in form and construction may he made. as circumstances require or experience suggests, wit-hout departing from the spirit of the invention, within the scope of tie appended claims.

I claim l. A device of the character described, comprising a shaft, a hinged door covering said shaft. a spring lock upon said door, a refrigerator within Said Shaft, means for raising and lowering the refrigerator within the shaft and means for automatically unlocking said door as the refrigerator is raised.

2. A device of the character described comprising a sha-ft, a hinged. door covering said shaft, a spring lock upon said door, a refrigerator within said shaft.l means for raising and lowering the refrigerator within the shaft and meansfor automatically unlocking said spring lock and raising the door as the refrigerator is raised.

3. A device of the character described, comprising a shaft, a hinged door covering said shaft, a spring lock upon. slid door, a lever operatively connected to said lock, a refrigerator within said shaft, means for raising and lowering the refrigerator within the shaft and means uponV the refrigerator for engaging the lever to unlock the door as the refrigerator is raised.

4. A device of the character described comprising a. shaft, a hinged ldoor covering said shaft, a spring lock upon seid door a refrigerator within said shaft, means or raising and lowering the refrigerator with- 5 in the shaft, means for automatically unlocking the door as the refrigerator is raised and rollers upon the refrigerator arranged FREDRICK J. DAHLKE. 

